Skip to main content

This is ZX81.org.uk

Tag: Computing

Installing Oracle 10g Express Edition on CentOS 4

The short story is that if you have a standard configuration things should work entirely as you’d expect. That is, download the archive which, these days, comes as a RedHat “rpm” file. Become “root” and enter “rpm -ivh oracle-xe.rpm” and wait a bit. The install goes away and creates all the required users, starts up the listener and creates a default empty database.

CentOS, for those that have not come across it, is a Linux operating system built from the same source package as RedHat Enterprise Linux but without the support contract.

.Mac Defection

The premise

I have become increasingly disaffected by Apple’s .Mac service, so much so that when I recently got an email congratulating me for subscribing for another year I immediately went to the website and cancelled.

The background

But before we start going into all the details, what is .Mac? Basically it’s Apple’s on-line services that are geared for Mac users but are also usable by those stuck in the Microsoft world. When I first got my iBook back in 2001 it was called iTools. It had a more limited set of features back then, but that included a something@mac.com email address.

Why Top Employees Quit – by Dumb Little Man

I think, over the years I have left companies for most of the reasons listed in this article. Not that I’m claiming to have always been a “star” employee.

I left my first job mainly for money. My third wins the honour of collecting most of the reasons in the list, but would gain special commendation for management BS (as the article calls it).

It was no surprise that they assumed that more people would leave for money. Most people incorrectly assumed that I left my last job for a pay raise too. The part that rang most true for me was “too challenged”:

Hard Disks 50th Birthday

Today marks the 50th anniverary of IBM’s introduction of the first hard disk.

Of course things have moved on since then. Not only are they physically smaller, cheaper and more reliable, but, according to Steven Levy, their capacity has increased considerably:

The total amount of information stored [was] not quite enough to hold two MP3 copies of Elvis Presley’s “Hound Dog.”

Would Apple’s iPod adverts have been quite so successful if it had only been “nearly two songs in your pocket”?

Mirror

This text is taken from the README and explains what mirror does and why I wrote it:

I think that I must have been looking for the wrong thing. When I restructured my web-site it became difficult to upload changes onto the server. What I needed was a program that copied files to the server. While I could find many programs that mirrored a web-site — copied them from the server — I couldn’t find any to do what I wanted.

GIndent

One thing that really bugs me is badly formatted code. I’ve nearly written a PL/SQL indentation program a number of times, but have never actually? completed it.

But this time it’s different. I figured that most of the pretty printers out there are very poorly written and work only on one particular programming language. However, most languages are very similar to one another. They all have comments, blocks and ‘if’ statements.

RIP

We had a power-cut last night. Pretty much the only electronic thing that worked in the flat was my iBook G3, a 2001-era 600Mhz model with a DVD-reader and no disc writing ability. After sending a few emails I closed the lid, putting it to sleep.

Ironically, this morning it was pretty much the only gadget in my flat that wasn’t working. I opened the lid and found the Spinning Beach-ball of Death. Perhaps because of its age this is not unusual. What was unusual was that after a few seconds it stopped spinning. On restarting rather than a nice, grey Apple logo I found a Finder icon and a question mark flashing on the screen. Not good.

iPhoto 6 Cards

As you may have seen, I was generally quite impressed with the photo books that the previous version of iPhoto was able to generate. I was therefore quite keen to try the new cards that you can buy using iPhoto 6, the version included with the recently released iLife ’06. (Am I the only person that thinks that “iLife” is a really naff name? First that, then “MacBook Pro” rather than “Powerbook.” What next?!)

iPhoto 5 Books

As many of you will already know, I recently came back from a trip to Vietnam. Some will even have seen the pictures. Others, however, do not like looking at pictures on a computer screen and always insist that I get prints. This time I decided to go one better and get a book.

Those still wallowing in the PC world may not be aware of a Macintosh application called iPhoto. It’s a bit like Adobe Photoshop Album if you’re familiar with that. It allows you to catalogue photos, categorise and label them and perform some minor edits such as red-eye removal, cropping and simple colour adjustment, although I normally use Photoshop for this kind of thing. I mention it here as one extra feature that I’ve never used before was its ability to make custom books. I normally use Photobox for my prints but this seemed like a much easier option.

The Perils of JavaSchools

I’m starting to sound like a grumpy old man. (Those that know me should stop nodding their heads and agreeing now, please.) This is another “things were better in my day” post.

As I previously mentioned, both graduates and companies are complaining that university courses are not vocational enough. I personally dispute that. However I am generally in agreement with Joel Spolsky when he says that “Java is not, generally, a hard enough programming language that it can be used to discriminate between great programmers and mediocre programmers.”